32.A banana has a mass （块） of about 100 grams （克）.How many bananas make a mass of about 1 kilogram?
A.1 B.10 C.l00 D.l000
33.What can fly very fast but has no wings?
A.Bird B.Parrot C.Aeroplane D.Time
34.What letter are people the most afraid of?
A.W B.M C.E D.A
keys:32. B. 1 kilogram=1000 grams.33. D. 34. C. Because it’s the end of "life".
